Battery tray, battery pack and vehicle

Abstract

The embodiment of the utility model provides a battery tray, and relates to the technical field of batteries, the battery tray comprises a first frame beam, the first frame beam comprises a frame beam body and a bearing part, the frame beam body comprises a top and a bottom which are arranged in a first direction in a deviating manner, and the bearing part is arranged at the bottom of the frame beam body; the bottom plate is connected to the first frame beam, and the projection of the bottom plate and the projection of the bearing part in the first direction at least partially coincide. According to the battery tray provided by the embodiment of the invention, the bearing part of the first frame beam can increase the contact area between the first frame beam and the bottom plate and provide the bearing force in the first direction for the bottom plate, so that the bearing capacity of the battery tray is improved, and the cruising ability of a battery pack is improved.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and specifically relates to a battery tray, a battery pack and a vehicle. Background Art

[0002] With the development of the new energy vehicle industry, consumers have higher and higher requirements for the battery life of vehicle battery packs. A battery pack usually includes a battery tray and a battery module arranged in the battery tray. The battery life of the battery pack is positively correlated with the weight of the battery module. Therefore, a battery pack with a long battery life also places higher requirements on the carrying capacity of the battery tray.

[0003] In the related art, the battery tray is welded by the frame beam and the bottom plate, and connected to the vehicle chassis through the frame beam. The weight of the battery module in the battery pack mainly acts on the bottom plate, so the connection strength between the bottom plate and the frame beam greatly affects the load-bearing capacity of the battery tray. However, due to the small welding contact area between the frame beam and the bottom plate and the unstable welding quality, the connection strength between the frame beam and the bottom plate is not easy to ensure, and the load-bearing capacity of the battery tray is difficult to be further improved, thereby limiting the battery pack's endurance. Utility Model Content

[0004] The present application aims to provide a battery tray, a battery pack and a vehicle to solve the problem that the existing battery tray has poor carrying capacity and limits the battery pack endurance.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, the present application discloses a battery tray, comprising:

[0007] a first frame beam, the first frame beam comprising a frame beam body and a supporting portion, the frame beam body comprising a top and a bottom arranged in opposite directions along a first direction, and the supporting portion being arranged at the bottom of the frame beam body;

[0008] A bottom plate, wherein the bottom plate is connected to the first frame beam and at least partially overlaps with a projection of the supporting portion in the first direction.

[0009] Optionally, the frame beam body is a hollow beam.

[0010] Optionally, a sealing groove is provided at the top of the frame beam body, the length direction of the sealing groove is consistent with the length direction of the frame beam body, and the sealing groove is used for installing a sealing member.

[0011] Optionally, the sealing groove is arranged on one side of the top of the frame beam body close to the bottom plate.

[0012] Optionally, the battery tray includes two first frame beams and two second frame beams, the two first frame beams are arranged relatively spaced apart along the second direction, and the two second frame beams are arranged relatively spaced apart along the third direction; the bottom plate is connected to the supporting parts of the two first frame beams, and the two first frame beams, the two second frame beams and the bottom plate enclose a first accommodating cavity for placing the battery module.

[0013] Optionally, the second frame beam is a hollow beam, and a reinforcing rib extending along the length direction of the second frame beam is arranged in the hollow cavity of the second frame beam.

[0014] Optionally, the battery tray also includes a third frame beam and a distribution box bracket, the third frame beam is arranged away from the first accommodating cavity, and is arranged relatively spaced apart from one of the first frame beams along the second direction, the two ends of the third frame beam are respectively connected to two of the second frame beams, and the distribution box bracket is connected to the third frame beam and one of the first frame beams, and encloses the third frame beam and one of the first frame beams to form a second accommodating cavity for placing the distribution box.

[0015] Optionally, the first frame beam close to the second accommodating cavity is further provided with a wire passing groove, and the first accommodating cavity and the second accommodating cavity are connected through the wire passing groove.

[0016] Optionally, the battery tray further comprises a maintenance cover, and the maintenance cover is detachably connected to the bottom of the third frame beam and one of the first frame beams.

[0017] In a second aspect, the present application further discloses a battery pack, comprising a battery tray as described above, and a battery module, wherein the battery module is disposed in a first accommodating cavity of the battery tray.

[0018] In a third aspect, the present application also discloses a vehicle, comprising a battery pack as described above, wherein the battery pack is connected to a chassis of the vehicle.

[0019] In the embodiment of the present application, the battery tray includes a first frame beam and a bottom plate, wherein the first frame beam includes a frame beam body and a supporting portion, the supporting portion is arranged at the bottom of the frame beam body, the bottom plate is connected to the first frame beam, and at least partially overlaps with the projection of the supporting portion in the first direction, so that the supporting portion of the first frame beam can provide a certain supporting force for the bottom plate in the first direction. In the battery tray provided in the embodiment of the present application, the supporting portion of the first frame beam can increase the contact area between the first frame beam and the bottom plate, and provide the bottom plate with a supporting force in the first direction, thereby improving the carrying capacity of the battery tray, which is beneficial to improving the battery life of the battery pack; in addition, the supporting portion and the frame beam body are welded to the bottom plate, which can reduce the thermal deformation caused by the welding of the bottom plate, ensure the flatness of the bottom plate after welding, and improve the product quality.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is one of the structural schematic diagrams of the battery tray described in the embodiment of the present application;

[0023] Figure 2 This is the second structural schematic diagram of the battery tray described in the embodiment of the present application;

[0024] Figure 3 is a top view of the battery tray described in the embodiment of the present application;

[0025] Figure 4 It is one of the side views of the battery tray described in the embodiment of the present application;

[0026] Figure 5 This is the second side view of the battery tray described in the embodiment of the present application;

[0027] Figure 6 This is one of the structural schematic diagrams of the first frame beam in the embodiment of the present application;

[0028] Figure 7 This is the second structural schematic diagram of the first frame beam in the embodiment of the present application;

[0029] Figure 8 It is a structural schematic diagram of the third frame beam described in an optional embodiment of the present application.

[0030] Figure numerals: 10 - first frame beam; 11 - frame beam body; 12 - supporting part; 13 - sealing groove; 14 - wire groove; 15 - electrophoresis hole; 20 - bottom plate; 30 - first accommodating cavity; 40 - second frame beam; 41 - lifting ear; 42 - heat insulation cover bracket; 43 - battery pack grounding bracket; 50 - third frame beam; 60 - distribution box bracket; 70 - second accommodating cavity; x - first direction; y - second direction; z - third direction. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0032] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] An embodiment of the present application provides a battery tray that can be installed under a vehicle chassis. After a battery module is installed on the battery tray, a battery pack is formed. The battery pack can be used as a power source for an electric vehicle.

[0036] It should be noted that, in the embodiment of the present application, the first direction x is the height direction of the battery tray, and the second direction y and the third direction z are the length direction or the width direction of the battery tray, respectively.

[0037] Reference Figure 1, showing one of the structural schematic diagrams of the battery tray according to the embodiment of the present application, referring to Figure 2 , showing the second structural schematic diagram of the battery tray according to the embodiment of the present application, referring to Figure 3 , showing a top view of the battery tray according to an embodiment of the present application, referring to Figure 4 , showing one of the side views of the battery tray according to the embodiment of the present application, referring to Figure 5 , showing a second side view of the battery tray of the embodiment of the present application, referring to Figure 6 , shows one of the structural schematic diagrams of the first frame beam in the embodiment of the present application, such as Figures 1 to 6 As shown, in an embodiment of the present application, the battery tray may include: a first frame beam 10 and a bottom plate 20, the bottom plate 20 is connected to the first frame beam 10, wherein the first frame beam 10 includes a frame beam body 11 and a supporting portion 12, the frame beam body 11 includes a top and a bottom arranged in opposite directions along a first direction x, the supporting portion 12 is arranged at the bottom of the frame beam body 11 and is formed by extending outward from the bottom of the frame beam body 11; the bottom plate 20 is connected to the first frame beam 10, and at least partially overlaps with the projection of the supporting portion 12 in the first direction x.

[0038] Specifically, the frame beam body 11 of the first frame beam 10 may have a rectangular structure in cross section, and has a top and a bottom that diverge along the first direction x, the supporting portion 12 is connected to the bottom of the frame beam body 11, and extends from the frame beam body 11 toward the side of the bottom plate 20, so that the cross section of the first frame beam 10 formed is similar to a "P" shape; the supporting portion 12 may be a supporting plate, and is connected to the frame beam body 11 by welding, or the supporting portion 12 may be integrally formed with the frame beam body 11. When welding, the flatness of the top and bottom of each frame beam must be ensured to prevent the flatness from affecting the sealing effect of the upper cover. The bottom plate 20 is connected to the first frame beam 10. Furthermore, the edge of the bottom plate 20 is connected to the inner side of the frame beam body 11, the bottom surface of the bottom plate 20 is connected to the supporting portion 12, and the top surface of the bottom plate 20 is used to place the battery module. Since the bottom plate 20 is connected to the frame beam body 11 and the supporting portion 12 of the first frame beam 10, the thermal deformation caused by the welding of the bottom plate 20 can be reduced, thereby ensuring the flatness of the bottom plate 20 after welding and improving product quality.

[0039] It can be understood that the supporting portion 12 of the first frame beam 10 can increase the contact area between the first frame beam 10 and the base plate 20 and provide a supporting force for the base plate 20 in the first direction x, thereby improving the carrying capacity of the battery tray and facilitating improving the battery life of the battery pack.

[0040] In a specific application, a lifting ear 41, a heat insulation cover bracket 42, a battery pack grounding bracket 43, etc. are also provided on the outside of the frame beam body 11. Among them, the lifting ear 41 is made of a rectangular tube profile and is provided with a mounting hole. A plurality of lifting ears 41 are arranged at intervals along the length direction of the frame beam body 11. The lifting ear 41 can be used to penetrate fastening bolts to connect the battery tray to the vehicle chassis. The heat insulation cover bracket 42 is used to fix and support the heat insulation cover, so as to better play the role of heat insulation to improve the safety of the battery pack.

[0041] Preferably, the frame beam body 11 and the supporting portion 12 of the first frame beam 10 are an integrally formed structure. For example, the first frame beam 10 can be made of high-strength steel and formed by a rolling process, and the supporting portion 12 formed by rolling can have a double-layer steel plate structure, so that it can have higher strength. In practical applications, since the heat generated by welding can easily cause thermal deformation of steel, compared with the supporting portion 12 being welded to the frame beam body 11, the frame beam body 11 and the supporting portion 12 are processed in an integrally formed manner, thereby avoiding the weld seam generated by welding between the two and improving the overall structural strength and service life. In addition, the first frame beam 10 can be formed at one time on a rolling production line, which reduces the production and processing steps and is also conducive to improving production efficiency.

[0042] In the embodiment of the present application, the frame beam body 11 is a hollow beam.

[0043] Specifically, the frame beam body 11 has a hollow cavity extending along its length direction, and the cross section of the frame beam body 11 can be a common square-shaped structure. The supporting portion 12 can be welded to the frame beam body 11, or it can be an integrally formed structure with the frame beam body 11 and extend toward one side of the bottom plate 20. A plastic plugging cover is also provided at the end of the frame beam body 11 to prevent debris from entering the hollow cavity to cause abnormal noise of the battery tray, and to prevent debris from accumulating and corroding parts, and at the same time it can play a decorative role to enhance the appearance of the battery tray.

[0044] It can be understood that the frame beam body 11 with a hollow structure can be roll-formed integrally with the supporting part 12 during processing, which is easy to process. Compared with the frame beam with a solid structure, the frame beam body 11 is set to a hollow structure, so that the first frame beam 10 can have a lighter weight. On the premise of meeting the structural strength requirements, the overall weight of the battery tray can be reduced, thereby reducing the weight of the vehicle and improving product competitiveness. In addition, the first frame beam 10 with a hollow structure can absorb and weaken part of the collision energy when subjected to a collision force, and the hollow beam can have better stability and bending resistance. When a battery module is arranged in the battery tray, it can have a higher load-bearing capacity.

[0045] In actual applications, since the overall structure of the battery tray is a steel structure, in order to meet the anti-corrosion and anti-rust requirements during use, the battery tray needs to be subjected to electrophoresis. Therefore, the frame beam body 11 is also provided with a plurality of electrophoresis holes 15 evenly spaced along the length direction of the frame beam body 11. The electrophoresis holes 15 can be used to pass the electrophoresis medium, thereby avoiding the appearance of electrophoresis dead corners and ensuring the electrophoresis effect. In addition, the frame beam body 11 is also provided with structural holes such as rivet holes, plugging cover buckle holes, high and low voltage connector installation holes, and exhaust valve holes. The above-mentioned various types of holes can be pre-punched online by a stamping die before roll forming.

[0046] In the embodiment of the present application, a sealing groove 13 for installing a sealing member is provided at the top of the frame beam body 11 .

[0047] Specifically, the length direction of the sealing groove 13 is consistent with the length direction of the frame beam body 11, and the length of the sealing groove 13 is the same as the length of the frame beam body 11. The sealing groove 13 is recessed from the top of the frame beam body 11 toward the bottom of the frame beam body 11, and the recessed shape is adapted to the seal, and the sealing groove 13 can be used to install the seal. In practical applications, the battery tray also includes an upper cover, which is connected to the top of the two frame beam bodies 11 and is used to block the first accommodating cavity 30. The setting of the sealing groove 13 facilitates the installation of sealants such as sealants or sealing strips on the frame beam body 11 to ensure the sealing after the upper cover is connected to the first frame beam 10.

[0048] Optionally, the sealing groove 13 is disposed on one side of the top of the frame beam body 11 close to the bottom plate 20 .

[0049] Specifically, the top of the frame beam body 11 is stepped, wherein the recessed portion of the step is the location of the sealing groove 13 and is arranged close to one side of the bottom plate 20. After the seal is installed in the sealing groove 13, the seal is located close to the side of the bottom plate 20, thereby ensuring a better sealing effect.

[0050] In an embodiment of the present application, the battery tray includes two first frame beams 10 and two second frame beams 40, the two first frame beams 10 are arranged relatively spaced apart along the second direction y, and the two second frame beams 40 are arranged relatively spaced apart along the third direction z; the bottom plate 20 is connected to the supporting portions 12 of the two first frame beams 10, and the two first frame beams 10, the two second frame beams 40 and the bottom plate 20 enclose a first accommodating cavity 30 for placing the battery module.

[0051] Specifically, the length of the first frame beam 10 is set along the third direction z, the two first frame beams 10 are relatively spaced along the second direction y, the supporting portion 12 of one first frame beam 10 extends toward the other first frame beam 10, the length of the second frame beam 40 is set along the second direction y, the two ends of the two second frame beams 40 along the second direction y are respectively connected to the two first frame beams 10, the two first frame beams 10 and the two second frame beams 40 are connected to each other to form the skeleton of the battery tray, and the four sides of the bottom plate 20 are respectively connected to the two first frame beams 10 and the two second frame beams 40 to enclose and form a first accommodating cavity 30 for placing the battery module. In addition, the bottom plate 20 is also located on the supporting portions 12 of the two first frame beams 10. In actual applications, the first frame beam 10, the second frame beam 40 and the bottom plate 20 can be connected by welding, wherein the bottom plate 20 is welded to the supporting portions 12 of the two first frame beams 10, so as to strengthen the connection strength between the bottom plate 20 and the first frame beam 10.

[0052] It should be noted that when the battery tray includes two first frame beams 10 relatively spaced apart along the second direction y, the two first frame beams 10 can limit the battery module placed in the first accommodating cavity 30 along the second direction y, and when the battery tray also includes two second frame beams 40 relatively spaced apart along the third direction z, the two second frame beams 40 can limit the battery module along the third direction z, so that during the driving of the vehicle, the battery module can be limited from two directions to reduce the probability of shaking of the battery module when it is hit. The lifting lug 41, the heat shield bracket 42, and the battery pack grounding bracket 43 can also be arranged on the second frame beam 40.

[0053] Optionally, the length of the second frame beam 40 is greater than the length of the first frame beam 10 .

[0054] In practical applications, the second frame beam 40 can be arranged along the length direction of the vehicle body, and the first frame beam 10 can be arranged along the width direction of the vehicle body. Since the first frame beam 10 includes a frame beam body 11 and a supporting portion 12, and the supporting portion 12 also provides bearing capacity for the battery module, the first frame beam 10 is arranged shorter, so that the first frame beam 10 has a stronger anti-deformation ability, and the thermal deformation during welding is also smaller, thereby ensuring the rigidity and strength of the battery tray.

[0055] Specifically, the second frame beam 40 is a hollow beam, and a reinforcing rib extending along the length direction of the second frame beam 40 is provided in the hollow cavity.

[0056] Exemplarily, the cross-sectional shape of the second frame beam 40 can be similar to the shape of the Chinese character "Ri" (日). The cavity in the second frame beam 40 in the shape of the Chinese character "Ri" is provided with reinforcing ribs, which strengthens the overall strength of the second frame beam 40. When the length of the second frame beam 40 is relatively long, the deformation of the second frame beam 40 can be reduced, ensuring the stability of the battery tray structure. In practical applications, the second frame beam 40 can be formed into a cross-section in the shape of the Chinese character "Ri" by roll forming process and synchronous on-line welding of two-end welding machines. Moreover, when welding and assembling the battery tray, the joint surface of the second frame beam 40 is placed on the outside to prevent air leakage at the weld due to welding quality problems at the joint.

[0057] In another alternative embodiment of the present application, the battery tray may include four first frame beams 10. The four first frame beams 10 are arranged in pairs opposite to each other and enclose a first accommodation cavity 30 for placing the battery module. It can be understood that since the supporting portions 12 are provided on the first frame beams 10, when the battery tray includes four first frame beams 10, the bottom plate 20 is connected to the four supporting portions 12 of the four first frame beams 10, thereby providing stronger supporting force for the bottom plate 20. However, it should be noted that since the processing technology of the first frame beam structure with the supporting portions 12 is more complex, and the bottom plate 20 needs to be welded to the four supporting portions 12, the production cost is increased. In practical applications, the number of the first frame beams should be comprehensively considered to achieve the balance between the supporting force of the battery tray and the production cost.

[0058] In the embodiment of the present application, the battery tray further includes a third frame beam 50 and a distribution box bracket 60. The third frame beam 50 is arranged away from the first accommodation cavity 30 and is relatively spaced apart from one of the first frame beams 10 along the second direction y. The two ends of the third frame beam 50 are respectively connected to the two second frame beams 40. The distribution box bracket 60 is connected to the third frame beam 50 and one of the first frame beams 10, and encloses a second accommodation cavity 70 for placing the distribution box with the third frame beam 50 and one of the first frame beams 10.

[0059] Specifically, along the second direction y, the third frame beam 50 and the two first frame beams 10 are arranged at intervals in sequence on the battery tray. Among them, the third frame beam 50 is located outside the first accommodation cavity 30 of the battery tray and is relatively spaced apart from one of the first frame beams 10. The middle first frame beam 10 divides the entire battery tray into a first accommodation cavity 30 and a second accommodation cavity 70 along the first direction x. In practical applications, since the battery module and the distribution box are respectively placed in the first accommodation cavity 30 and the second accommodation cavity 70, it can play a better role in limiting and protecting the battery module and the distribution box, preventing problems such as the battery module and the distribution box from loosening due to external forces during vehicle driving and causing collisions.

[0060] In practical applications, the third frame beam 50 is also provided with a connector opening for installing connectors. The third frame beam 50 can be a common "mouth"-shaped beam or a P-shaped frame beam such as the structure of the first frame beam 10. Among them, referring to Figure 8 , a schematic structural diagram of the third frame beam 50 according to an alternative embodiment of the present application is shown. As Figure 8 shown, the cross-section of the third frame beam 50 is similar to a "mouth" shape.

[0061] Referring to Figure 7 , a second schematic structural diagram of the first frame beam 10 according to an embodiment of the present application is shown. As Figure 7 shown, a wire trough 14 is further provided on the frame beam body 11 of the first frame beam 10 close to the second accommodation cavity 70. The first accommodation cavity 30 and the second accommodation cavity 70 are connected through the wire trough 14.

[0062] Since a wire harness is required to connect between the battery module and the distribution box to achieve circuit connection, the provision of the wire trough 14 on the frame beam body 11 can provide an avoidance space for the connection of the wire harness between the first accommodation cavity 30 and the second accommodation cavity 70, and prevent the wire harness from passing through the top of the frame beam body 11 and affecting the installation of the upper cover.

[0063] In the embodiment of the present application, the battery tray further includes a maintenance cover plate. The maintenance cover plate is arranged on the side of the distribution box bracket 60 facing away from the second accommodation cavity 70 and is detachably connected to the bottoms of the first frame beam 10 and the third frame beam 50 around the second accommodation cavity 70.

[0064] Specifically, the provision of a detachable maintenance cover plate on the battery tray can be used for on-line maintenance of the internal circuits of the battery pack, which can greatly improve the maintenance efficiency and save the maintenance cost at the same time.

[0065] In practical applications, a sealing ring is further provided between the maintenance cover plate and the first frame beam 10 and the third frame beam 50. Further, the sealing ring can be a silicone foam in the shape of a rectangular ring belt and is used in cooperation with the maintenance cover plate. When in use, the sealing ring can be first pasted at the opening of the second accommodation cavity 70 and fitted tightly, and then the maintenance cover plate is installed on the first frame beam 10 and the third frame beam 50 with screws to ensure the sealing performance of the contact surface between the maintenance cover plate and the frame beam.

[0066] In summary, in the embodiment of the present application, the battery tray includes a first frame beam and a bottom plate, wherein the first frame beam includes a frame beam body and a supporting portion, the supporting portion is arranged at the bottom of the frame beam body, the bottom plate is connected to the first frame beam, and at least partially overlaps with the projection of the supporting portion in the first direction, so that the supporting portion of the first frame beam can provide a certain supporting force for the bottom plate in the first direction. In the battery tray provided in the embodiment of the present application, the supporting portion of the first frame beam can increase the contact area between the first frame beam and the bottom plate, and provide a supporting force in the first direction for the bottom plate, thereby improving the carrying capacity of the battery tray, which is beneficial to improving the battery life of the battery pack; in addition, the supporting portion and the frame beam body are welded to the bottom plate, which can reduce the thermal deformation caused by the welding of the bottom plate, ensure the flatness of the bottom plate after welding, and improve the product quality.

[0067] The present application also discloses a battery pack, comprising a battery tray as described above, and a battery module, wherein the battery module is disposed in a first receiving cavity of the battery tray.

[0068] The present application also discloses a vehicle, comprising a battery pack as described above, wherein the battery pack is connected to a chassis of the vehicle via a first frame beam and / or a second frame beam of a battery tray.

[0069] It should be noted that in the embodiment of the present application, the battery pack and the vehicle both include the battery tray as described above, and therefore have similar beneficial effects as the above-mentioned battery tray, which will not be elaborated here.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0071] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A battery tray, characterized in that: include: a first frame beam, the first frame beam comprising a frame beam body and a supporting portion, the frame beam body comprising a top and a bottom arranged in opposite directions along a first direction, and the supporting portion being arranged at the bottom of the frame beam body; A bottom plate, wherein the bottom plate is connected to the first frame beam and at least partially overlaps with a projection of the supporting portion in the first direction.

2. The battery tray according to claim 1, characterized in that: The frame beam body is a hollow beam.

3. The battery tray according to claim 1, characterized in that: A sealing groove is arranged on the top of the frame beam body, the length direction of the sealing groove is consistent with the length direction of the frame beam body, and the sealing groove is used for installing a sealing member.

4. The battery tray according to claim 3, characterized in that: The sealing groove is arranged on one side of the top of the frame beam body close to the bottom plate.

5. The battery tray according to claim 1, characterized in that: The battery tray includes two first frame beams and two second frame beams, the two first frame beams are arranged relatively spaced apart along the second direction, and the two second frame beams are arranged relatively spaced apart along the third direction; the bottom plate is connected to the supporting parts of the two first frame beams, and the two first frame beams, the two second frame beams and the bottom plate enclose a first accommodating cavity for placing the battery module.

6. The battery tray according to claim 5, characterized in that: The second frame beam is a hollow beam, and a reinforcing rib extending along the length direction of the second frame beam is arranged in the hollow cavity of the second frame beam.

7. The battery tray according to claim 5, characterized in that: The battery tray also includes a third frame beam and a distribution box bracket. The third frame beam is arranged away from the first accommodating cavity and is relatively spaced apart from one of the first frame beams along the second direction. The two ends of the third frame beam are respectively connected to two of the second frame beams. The distribution box bracket is connected to the third frame beam and one of the first frame beams, and is enclosed with the third frame beam and one of the first frame beams to form a second accommodating cavity for placing the distribution box.

8. The battery tray according to claim 7, characterized in that: The first frame beam close to the second accommodating cavity is further provided with a wire passing groove, and the first accommodating cavity and the second accommodating cavity are connected through the wire passing groove.

9. The battery tray according to claim 8, characterized in that: The battery tray further includes a maintenance cover, which is detachably connected to the bottom of the third frame beam and one of the first frame beams.

10. A battery pack, characterized in that: It comprises a battery tray as described in any one of claims 1 to 9, and a battery module, wherein the battery module is arranged in a first accommodating cavity of the battery tray.

11. A vehicle, characterized in that: Comprising the battery pack as claimed in claim 10, wherein the battery pack is connected to the chassis of the vehicle.

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